Artifact Details

Description

B&W image of D.H. Lehmer's gear sieve. It is on a wheeled cart. The motor is missing but belt is on pulley.
Verso: Paper label held with scotch tape: "DH Lehmer First photoelectric sieve, 1932, as it appeared, at the Century of Progress Exposition in Chicago" . Blue pencil "D.H. D.H. Lehmer Electric Sieve 1932". Paper labels: " Please return to" The Computer Museum Photographic Archives Museum Wharf 300 Congress Street Boston, MA 02210" , This photo may not be reproduced without written permission of the Photo Archives of the Computer Museum, Boston, MA."

Date

1932 ca.

Identifying Numbers

Other number

#111

Verso pencil

Dimensions

overall: 10 in x 8 in

Category

Photograph

Credit

Courtesy of Gwen Bell

Lot Number

X7413.2015